| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,575 |
| Countries in World War I | 0 | - | 4.88 | 227,714 |
| Countries in World War II | 0 | - | 4.54 | 910,048 |
| Battle to Country | 0 | - | 4.91 | 53,069 |
| Important Cities in WWII | 0 | - | 4.42 | 93,305 |
| Independence from Whom | 0 | - | 4.99 | 211,140 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,569 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,315 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,838 |
| Countries by Founding Story | 0 | - | 4.95 | 76,989 |
| Communist Countries in History | 0 | - | 4.63 | 494,585 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,075 |
| Recently Independent Countries | 0 | - | 4.98 | 158,902 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,071 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,414 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,531 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,185 |
| Countries by Former Name | 0 | - | 4.99 | 124,843 |
| Historical City to Country | 0 | - | 4.83 | 78,392 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,729 |
| WWII First Names | 0 | - | 4.44 | 41,727 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,246 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,025 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,014 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,090 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,110 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,375 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,006 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,269,318 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,209 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,624 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,429 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,761 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,639 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,371 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,515 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,941 |
| Orthodox Countries | 0 | - | 4.92 | 131,167 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,499 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,568 |
| Monarchies of Europe | 0 | - | 4.90 | 97,862 |
| Monarchies of Asia | 0 | - | 4.97 | 70,921 |
| Asian Country Superlatives | 0 | - | 4.85 | 80,739 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,352 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,781 |
| Landlocked Countries | 0 | - | 4.99 | 418,017 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,638 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,409 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,942 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,723 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,626 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,750,911 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,782 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,684 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,775 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,147 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,354 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,613 |
| Island Countries | 0 | - | 4.99 | 709,365 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,536 |
| Himalayan Countries | 0 | - | 4.94 | 137,025 |
| Andean Countries | 0 | - | 4.95 | 83,731 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,981 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,345 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,653 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,225 |
| Danube Countries | 0 | - | 4.97 | 71,564 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,413 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,975 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,483 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,528 |
| European Landlocked Countries | 0 | - | 4.99 | 146,670 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,996 |
| Countries with the Most Species | 0 | - | 4.99 | 102,724 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,131 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,388 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,554 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,248 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,916 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,298 |
| Countries in the Alps | 0 | - | 4.87 | 117,544 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,037 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,190 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,355 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,888 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,993 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,384 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,161 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,109 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,913 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,473 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,433 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,294 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,851 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,118 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,141 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,994 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,993 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,518 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,404 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,840 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,997 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,927 |
| Largest Countries By Category | 0 | - | 4.97 | 157,495 |
| Countries by Countries | 0 | - | 4.96 | 62,753 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,676 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,514 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,073 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,131 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,450 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,241 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,023 |
| Northernmost Countries | 0 | - | 4.99 | 360,063 |
| Countries of South America | 0 | - | 5.00 | 921,765 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,554 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,570 |
| "Land" Countries | 0 | - | 4.98 | 335,565 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,893 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,681 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,031 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,096 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,557 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,378 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,023 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,387 |
| Countries by Independence Day | 0 | - | 4.61 | 52,698 |
| Former Countries by Capital | 0 | - | 4.45 | 127,315 |
| Former Countries | 0 | - | 4.75 | 133,088 |
| Hindu Countries | 0 | - | 4.86 | 49,950 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,397 |
| Political Movements by Country | 0 | - | 4.46 | 72,438 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,452 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,074 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,819,265 |
| One Border Countries | 0 | - | 4.98 | 467,218 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,052 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,610,958 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,707 |
| Countries with Megacities | 0 | - | 4.99 | 249,822 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,536 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,795 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,864 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,786 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,726 |
| Countries by Official Language | 0 | - | 4.95 | 194,462 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,288 |
| Countries in their Native Language | 0 | - | 4.99 | 198,023 |
| Subdivisions by Country | 0 | - | 4.86 | 50,252 |
| National Founders | 0 | - | 4.40 | 83,774 |
| Megadiverse Countries | 0 | - | 4.96 | 134,702 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,096,720 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,156 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,146 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,618 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,702 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,989 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,616 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,755 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,448 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,930 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,666 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,661 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,897 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,730 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,064 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,281 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,950 |
| World Map Quiz | 0 | - | 4.81 | 64,384 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,116 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,934 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,038 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,386 |
| Countries by Road Signs | 0 | - | 4.98 | 53,571 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,318 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,829 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,548 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,078 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,433 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,604 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,749 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,215 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,213 |
| Widest Countries East to West | 0 | - | 4.92 | 129,280 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,367 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,840 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,970 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,447 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,124 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,473 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,197 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,608 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,707 |
| Countries of Africa | 0 | - | 5.00 | 2,527,344 |
| Countries with Double Letters | 0 | - | 4.97 | 94,907 |
| Countries that End in N | 0 | - | 4.95 | 169,513 |
| Countries with Five Letters | 0 | - | 4.96 | 278,535 |
| Countries with Six Letters | 0 | - | 4.94 | 212,254 |
| Countries with W | 0 | - | 4.97 | 159,387 |
| Countries with Z | 0 | - | 4.98 | 289,592 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,587 |
